This looks like fun

[TriplexDread]

Special Features

• Wonderfully told story in the style of traditional English storytelling
• Three gloriously detailed interchangeable characters: play as Wizard, Warrior and Thief, each with their own skills and abilities
• Each character brings new opportunities to the gameplay and puzzle solving
• Swap between the characters at any point in the game
• Flexible gameplay with multiple solutions to puzzles
• An action-platformer with a twist
• Multiplayer Mode: Up to 3 players for simultaneous Trine gaming fun

http://www.play.com/Games/PC/4-/9101777/Trine/Product.html

 

[Abarbarian]

I enjoyed this and the follow up. Good value for the money.

http://www.play.com/Games/PC/4-/102902/Divine-Divinity/Product.html